
The goal of this website is to serve as a portfolio for all of my designs and experience in the engineering world. It contains a number of relevant projects I have been a part of, and will be updated with my new experiences as they develop. I hope that by leaving this website, you will have learned much more about me as a professional!



I am in my fourth year of university and have been preparing to work in aerospace, taking courses in fluid mechanics, thermodynamics, solids and materials, aerospace human factors, aerospace propulsion, and turbomachinery. For the 2024/25 CSI Rockets development cycle, I designed and manufactured a high-pressure nitrogen quick disconnect system, which was a complete success and allowed the team to become the first student organization in the US to launch a LOX-hybrid vehicle. For the 2025/26 development cycle, I increased my responsibility and lead a team which developed an entire liquid oxygen feed system, including custom quick disconnects, automatic fill valves, check valves, and integration with GN2 systems and electronics. For this upcoming school year, I look forward to developing a liquid bipropellant engine, leading an expanded team working on LOX and ethanol feed lines, including brand new parts such as a venturi flow meter. During this time, I have also gained considerable experience in industry. In 2025 and 2026 I interned at Ball Corporation and STS Aerospace, respectively. There I not only learned and gained experience integral to engineering in industry, but I applied skills in design, manufacturing, data analysis, and process management to leave a lasting impact at each company.


Welcome!
My name is Paolo Maselli, I'm from New Jersey, and I’m a fourth-year mechanical engineering student at Columbia University SEAS. Growing up, I was fascinated by toy rockets and airplanes, always dreaming of being in the clouds and reaching the stars. That early passion has shaped my path. I am a Prop-Fluids RE on the CSI Rocketry Team, and starting in 2027, will be at Cape Canaveral as a Fluids Launch and Test Engineer at SpaceX.
